General Knowledge 1
To prevent a load from shifting, there should be at least one tie-down for every how many feet of cargo?
What is 10 feet?
What does the air compressor governor control?
What is when the air is pumped into the air tanks.
Air line colors on a combination vehicle, emergency and service lines.
What is Red (Emergency) and Blue (Service)?
What is the purpose of a pre-trip inspection?
What is Safety ? (and it the law)
How far ahead of the truck should a driver look while driving?
What is 12-15 seconds?
At what Blood Alcohol Concentration (BAC) will you be placed out of service for 24 hours?
What is Any detectable amount ?
The vehicle must have a warning device which comes on when the air pressure in the service air tanks falls below:
What is at or above 60 PSI ?
The most common type of foundation brake found on heavy vehicles.
What is the S-Cam drum brakes ?
What is the maximum allowable amount of play in a steering wheel?
What is No more than 2 inches or 10 degrees in a 20 inch steering wheel?
When fighting a fire where should you aim ?
At the base of the fire
A first offense for driving a CMV under the influence of alcohol or drugs will cause you to lose your CDL for at least?
What is one year or 12 months ?
What are spring brakes held back by during normal driving?
What is Air pressure ?
Maximum space between the upper and lower fifth wheel after coupling.
What is None?
The slack adjuster should have no more than ___ inch(es) of free play
What is 1 inch?
How many missing or broken leaves in a leaf spring will cause your vehicle to be placed out of service?
What is 1/4 of the total ?
According to the Commercial Driver’s License Manual, why should you limit the use of your vehicle’s horn?
It may startle other drivers
A straight truck air brake system should not leak at a rate of more than psi per minute with the engine off and the brakes released?
What is 2psi?
When should hand valve be used to park a combination vehicle?
What is Never?
Steer tires must have a minimum of ____ inch tread depth in all major grooves.
What is 4/32 ?
Bridge formulas are designed to:
Permit less maximum axle weight for axles that are closer together
If you break down on a level, straight, four-lane, divided highway, where should you place the reflective emergency triangles?
One 10 feet from the rear of the vehicle, one approximately 100 feet from the rear of the vehicle, and one about 200 feet from the rear of the vehicle
How do you check the free-play in manual slack adjusters?
What is Park on level ground, chock the wheels, release the parking brakes and pull slack adjusters?
The air leakage rate for a combination vehicle engine off brakes off should be less how many psi per minute?
What is 3psi?
When performing your pre-trip inspection, brake linings must have a minimum of ___ inch of pad left.
What is 1/4?
You do not have a Hazardous Materials Endorsement on your CDL. You can drive a vehicle hauling hazardous materials when?
When it doesn't require placards?